docs: def convert_to_base(self, unit_system=None, equivalence=None, **kwargs):
          """
          Convert the array in-place to the equivalent base units in
          the specified unit system.
  
          Optionally, an equivalence can be specified to convert to an
          equivalent quantity which is not in the same dimensions.
  
          Parameters
          ----------
          unit_system : string, optional
              The unit system to be used in the conversion. If not specified,
              the configured base units are used (defaults to MKS).
          equivalence : string, optional
              The equivalence you wish to use. To see which equivalencies
              are supported for this object, try the ``list_equivalencies``
              method. Default: None
          kwargs: optional
              Any additional keyword arguments are supplied to the equivalence
  
          Raises
          ------
          If the provided unit does not have the same dimensions as the array
          this will raise a UnitConversionError
  
          Examples
          --------
          >>> from unyt import erg, s
          >>> E = 2.5*erg/s
          >>> E.convert_to_base("mks")
          >>> E
          unyt_quantity(2.5e-07, 'W')
          """
          self.convert_to_units(
              self.units.get_base_equivalent(unit_system),
              equivalence=equivalence,
              **kwargs
          )